Surgical Port Positioning via 3D Body Wall and Depth Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Computer-assisted surgical systems face challenges in accurately positioning ports on a patient's external body wall for minimally invasive procedures due to patient-specific anatomical variations, leading to potential collisions and reduced procedural effectiveness.
Innovation Solution
The system obtains and combines external body wall data and internal depth data to precisely determine optimal port locations, using imaging devices with depth sensors and illumination systems to generate three-dimensional models, thereby enhancing the accuracy and safety of surgical instrument placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional port positioning methods are used, then the surgical procedure can be performed, but the positioning accuracy is reduced due to patient-specific anatomical variations
Solution Approach 1:
The system performs preliminary actions by acquiring preoperative external body wall data and internal depth data to create a patient-specific three-dimensional model before the surgical procedure. This model is used to pre-determine optimal port locations, allowing the surgical team to plan and prepare positioning strategies in advance that are tailored to the patient's unique anatomy, thereby improving positioning accuracy while maintaining adaptability.
Solution Approach 2:
The system creates a virtual copy or replica of the patient's anatomy through three-dimensional modeling based on external body wall data and internal depth data. This digital twin allows the system to simulate and evaluate different port positioning scenarios without physically altering the patient, enabling precise prediction of optimal positions that account for patient-specific anatomical variations while maintaining adaptability to individual cases.
2Ease of operation
If multiple ports are positioned close together, then access to internal structures is improved, but the chance of collisions between manipulator arms increases
Solution Approach 1:
The system transitions from two-dimensional surface mapping to three-dimensional spatial modeling by integrating external body wall data with internal depth data. This dimensional transition enables the system to calculate optimal port positions that consider the three-dimensional arrangement of internal structures and manipulator arm trajectories, allowing close spacing of ports for improved access while predicting and avoiding collision paths through spatial simulation.
Solution Approach 2:
The system incorporates feedback mechanisms by simulating manipulator arm movements and collision risks based on the three-dimensional patient model. The preoperative planning software evaluates proposed port positions and provides feedback on potential collisions, allowing the surgical team to adjust port positioning to optimize access while minimizing collision risks between multiple manipulator arms.
3Productivity
If generic port positioning is used, then the procedure is simpler, but the effectiveness of the surgical procedure is reduced
Solution Approach 1:
The system achieves universality by developing a multi-functional three-dimensional modeling platform that can process various types of data (external body wall data, internal depth data from different imaging modalities) and generate comprehensive surgical planning information. This unified system handles multiple tasks including port positioning, collision prediction, and surgical simulation, thereby improving procedural effectiveness while managing complexity through integration rather than multiple separate tools.
Data Source
AI summary
An exemplary operation management system is configured to obtain external body wall data representative of a three-dimensional model of an external body wall of a patient, obtain internal depth data representative of a depth map for an internal space of the patient, and perform, based on the external body wall data and the internal depth data, an operation associated with a computer-assisted surgical system configured to perform a procedure with respect to the patient.